Question

the ratio of price of a chair and price of a table is 2:7. if the price of 7 chair is cost Rs 1400.find the price of 10 table.​

A-7000, B-5500, C-6500, D-6800​

Answer 1

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The price of 10 tables is Rs. 7000

Step-by-step explanation:

Given:

Ratio of price of Chair to Table = 2:7

Price of 7 chairs = Rs. 1400

Asked:

Price of 10 tables

Analysis:

Price of 1 chair = Rs. $\frac{1400}{7}$ = Rs. 200

Let the common multiple be 'x',

Then the prices of chairs and tables become 2x and 7x,

2x = 200

x = $\frac{200}{2}$ = Rs. 100

7x = 7 × 100 = Rs. 700

Price of 10 table = Rs. 700 × 10 = Rs. 7000

Hence, price of 10 tables is Rs. 7000.

Answer 2

Price of 1 chair = Rs. \frac{1400}{7}

7

1400

= Rs. 200

Let the common multiple be 'x',

Then the prices of chairs and tables become 2x and 7x,

2x = 200

x = \frac{200}{2}

2

200

= Rs. 100

7x = 7 × 100 = Rs. 700

Price of 10 table = Rs. 700 × 10 = Rs. 7000

Hence, price of 10 tables is Rs. 7000.